Validate least-privilege capabilities, data scope, destinations, budget and expiry before agent-to-agent delegation

Hash and attest supplied delivery evidence

Check declared dependency identity, source and digest coverage

Normalize public text, HTML, JSON or XML documents into source-backed JSON

Attest declared DNS and HTTPS domain-control proof status

Detect duplicate charge fingerprints

Validate durable, isolated and replay-safe agent task envelopes

Propose capped shadow prices without changing live prices

Detect self and reciprocal transaction patterns without treating correlation as fraud

Build source-bounded entity field coverage without inventing missing facts

Bind an ERC-8004 registry identity to supplied, independently marked evidence without claiming ownership

Aggregate diverse verified observations with mandatory low-sample abstention

Calculate a fail-closed maximum cost across an agent execution plan

Determine whether an agent action may run, needs approval or must be denied

Detect safe replays and conflicting reuse of an idempotency key

Canonical PHION catalog snapshot or digest-based delta with exact execution templates and signed evidence

Detect compatibility or conflict between agent policies

Plan bounded idempotent resumption from a checkpoint

Test whether source observations meet an explicit maximum-age policy

Identify changed manifest fields and hashes

Capture a timestamped public market-data snapshot with freshness and provenance

Forecast only from verified demand windows with low-sample abstention

Validate MCP protocol, method and stateless-discovery compatibility

Map MCP and A2A task identities without losing state, authority or expiry

Bind MCP catalog digest to TTL, scope and revalidation policy

Inspect an MCP tool manifest before installation or trust, including collisions, missing schemas and instruction injection

Bind declared MCP domain, endpoint, manifest, key and version in signed evidence

Bind MCP tool-call identity to a transaction without silently granting authority

Screen persistent agent-memory writes for poisoning, missing provenance, secret requests and unsafe instructions

Recommend evidence-bound hold or release states without custody or fund movement

Bundle independent source observations while exposing agreement and disagreement

Bind verified OAuth issuer and audience claims to the intended receiver

Verify declared token audience and issuer after local cryptographic validation

Capture supplied public explorer or RPC evidence with immutable content hashes

Detect paid-without-delivery and delivered-without-payment states

Rank only tested payment routes under explicit cost and latency constraints

Reconcile payment and receipt fields

Reject impossible or unsafe x402 routes, rank eligible routes by explicit policy, and return a directly executable next action

Resolve a person from strong identifiers through People Data Labs and return signed, limitation-aware evidence

Validate and sign a portable event hash chain

Report price bands only from settled observations

Commit request, authority, execution, payment and delivery evidence in one auditable proof

Estimate success, quality, latency and cost with sample-aware uncertainty

Bind declared consent to action purpose, scope and expiry

Reject x402 quotes that cannot remain valid through authorization and retry

Validate HTTPS callback and redirect destinations against an explicit host allowlist

Recommend an auditable bounded reputation change from diverse verified outcome evidence

Stop repeated execution nodes and step overruns

Sign a declared retention or deletion action

Detect and redact common secret indicators before transmission